package object;

public class IntegerDemo {
    public static void main(String[] args) {

        Integer i=5;   //Integer i=Integer.valueOf(5);
        System.out.println(i);
        int j=i; // int j=i.intValue();
        System.out.println(j);





        int max=Integer.MAX_VALUE;
        int min=Integer.MIN_VALUE;
        System.out.println("int的最大值为:"+max+",最小值为:"+min);

        long max1=Long.MAX_VALUE;
        long min1=Long.MIN_VALUE;
        System.out.println("long的最大值为:"+max1+",最小值为"+min1);


















        /*
        Integer i1=new Integer(5);
        Integer i2=new Integer(5);
        System.out.println(i1==i2);
        System.out.println(i1.equals(i2));


        Integer i3=Integer.valueOf(5);
        Integer i4=Integer.valueOf(5);
        System.out.println(i3==i4);
        System.out.println(i3.equals(i4));



        int i=i4.intValue();

         */

    }

}
